Try Apply[GCD,k]
John Vassiliou wrote:
> Dear Friends,
>
> I wand to get a GCD of a list of polynomial coefficients but
> had no luck, i.e. p[x]=5x+10, k=CoefficientList[p[x],x]={5,10},
> GCD[k]={5,10}. No result. I cant remove the curly braces from
> GCD[{...}] in order GCD to work. please help
>
> thanks
>